A quasi-monochromatic X-rays source for art painting pigments investigation |
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Authors: | F Albertin A Franconieri M Gambaccini D Moro F Petrucci and S Chiozzi |
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Institution: | (1) Department of Physics and INFN, University of Ferrara, Via Saragat 1, 44100 Ferrara, Italy;(2) Department of Physics, University of Padova, Via Marzolo 8, 35131 Padova, Italy;(3) LNL—INFN, Viale dell’Università 2, 35020 Legnaro, Padova, Italy |
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Abstract: | Monochromatic X-ray sources can be used for several applications, like in medicine or in studying our cultural heritage. We
are investigating imaging systems based on a tuneable energy band X-ray source, to obtain an element mapping of painting layers
using the K-edge technique.
The narrow energy band beams are obtained with conventional X-ray source via Bragg diffraction on a mosaic crystal; such an
analysis has been performed at different diffraction angles, tuning the energy to investigate spectra of interest from the
artistic point of view, like zinc and copper. In this paper the characteristics of the system in terms of fluence rate are
reported, and first results of this technique on canvas samples and painting are presented. |
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Keywords: | PACS" target="_blank">PACS 78 70 Dm 07 85 Fv 07 05 Pj |
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